22 Tips for S Series Switches

1 22 Tips for S Series Switches

Huawei S series switches have been developed in multiple software versions. There are many improvements on the S series switches in terms of user experience. However, you may not notice these simplified configurations and operations in product documents.

This article shows you 22 product improvements and tips, helping you configure and maintain the switches easily.

The startup system-software Command Specifies the System Software for Next Startup and Automatically Upgrades the BootROM

For details, see Table 1-4.

Table 1-4 The startup system-software command specifies the system software for next startup and automatically upgrades the BootROM

Improvement

Involved Models

Before

Now

The startup system-software command specifies the system software for next startup and automatically upgrades the BootROM.

All models

In versions earlier than V200R001, the system asks whether you need to upgrade the BootROM. If you do not upgrade the BootROM, the BootROM and system software do not match, and the switch cannot start.

In V200R001 and later versions, this command automatically upgrades the BootROM.

Tips

In V200R001 and later versions, the BootROM upgrade selection prompt is removed, and the switch automatically upgrades the BootROM.

Logging In to a CSS Through Any Serial Interface on the Master or Standby Switch

For details, see Table 1-5.

Table 1-5 Logging in to a CSS through any serial interface on the master or standby switch

Improvement

Involved Models

Before

Now

You can log in to a CSS through any serial interface on the master or standby switch.

All modular switches

In versions earlier than V200R003, you can log in to a CSS only through a serial interface on the master switch.

In V200R003 and later versions, you can log in to a CSS through any serial interface on the master or standby switch.

Tips

You can log in to a CSS through any serial interface on the master or standby switch, and maintain the CSS more easily.

1.2 Interface Configuration

One-Click Configuration Deletion on an Interface

For details, see Table 1-6.

Table 1-6 One-click configuration deletion on an interface

Improvement

Involved Models

Before

Now

One-click configuration deletion on an interface

All models

In versions earlier than V200R001, configurations on an interface need to be deleted one by one. It is time-consuming to delete the configurations if too many configurations exist.

lIn V200R001 and later versions, you can run the clear configuration interfaceinterface-type interface-num command in the system view to delete all the configurations on interfaces.

lIn V200R003 and later versions, you can run the clear configuration this command on an interface to delete all the configurations on the interface.

Tips

You can run the one-click configuration deletion command to delete all the unnecessary configurations on interfaces, instead of deleting them one by one.

The interface range command specifies the interface range for batch operations on interfaces.

All models

To perform the same operations on multiple interfaces in versions earlier than V200R003, you need to configure these interfaces one by one.

In V200R003 and later versions, you can run the interface range { interface-type interface-number1 [ tointerface-type interface-number2 ] } &<1-10> command to perform the same operations on multiple consecutive or nonconsecutive interfaces.

Tips

If you need to run the same commands on different interfaces, performing the same operations on each interface one by one is time-consuming and labor-intensive. The interface range command easily solves this problem.

Example

Configure interfaces GigabitEthernet1/0/1 to GigabitEthernet1/0/20 as trunk interfaces in a batch.

In versions earlier than V200R005, you need to create a VLANIF interface and then configure an IP address for the VLANIF interface.

In V200R005 and later versions, you can directly configure an IP address for a physical interface after switching the interface to Layer 3 mode, and do not need to configure a VLANIF interface for IP address assignment.

Tips

After switching a physical interface to Layer 3 mode, you can directly configure an IP address for the interface, saving VLANIF interface and VLAN resources.

A command is added to display CSS link status during CSS card clustering.

S9300, S7700

In versions earlier than V200R001, no command is available to display CSS link status during CSS card clustering. When a CSS link becomes faulty, you can only view the indicator on a CSS card for analysis.

In V200R001 and later versions, the display css channel command is added to display CSS link status.

Tips

You can run the display css channel command to view the CSS link status for CSS maintenance.

Example

Run the display css channel command to view all CSS link connection information and link status of a CSS.

In earlier versions of V200R005, before changing the interface type, restore the default VLAN configuration of the interface so that the interface belongs to only VLAN 1.

In V200R005 and later versions, before changing the link type of an interface, you do not need to restore the default VLAN configuration. However, if the link type of the interface is changed, the VLAN configuration of the interface is deleted.

Tips

You do not need to restore the default VLAN configuration of an interface before changing the link type of an interface.

In earlier versions of V200R001, an STP-enabled port is not an edge port by default, and the edge port needs to be manually specified.

In V200R001 and later versions, the edge port detection is enabled on an STP-enabled port. If the switch does not receive STP BPDUs from the remote device in a given period of time, the STP-enabled port automatically inherits attributes of the edge port (the configuration remains unchanged).

Tips

If the switch does not receive STP BPDUs from the remote device in a given period of time, the STP-enabled port automatically inherits attributes of the edge port. This facilitates switch maintenance.

Voice VLAN Can Add the Voice VLAN ID to Untagged Packets

For details, see Table 1-14.

Table 1-14 Voice VLAN can add the voice VLAN ID to untagged packets

Improvement

Involved Models

Before

Now

Voice VLAN can add the voice VLAN ID to untagged packets.

All models

In earlier versions of V200R003, the switch cannot add the voice VLAN ID to untagged packets. The switch must use the ACL or MAC address of a VLAN to add the voice VLAN ID to untagged packets, which is inconvenient.

In V200R003 and later versions, include-untagged is added to the voice-vlanvlan-idenable command. That is, the voice-vlanvlan-idenable [ include-untagged ] command adds the voice VLAN ID to untagged packets.

Tips

You can use the voice-vlanvlan-idenable [ include-untagged ] command to add the voice VLAN ID to untagged packets. There is no need to use the ACL or MAC address of a VLAN. The management is convenient.

1.5 ACL

Five Steps Are Reduced to Two Steps for ACL Configuration

For details, see Table 1-15.

Table 1-15 Five steps are reduced to two steps for ACL configuration

Improvement

Involved Models

Before

Now

Five steps are reduced to two steps for ACL configuration.

Modular switches

In versions earlier than V200R005, the configuration procedure is as follows:

1.Configure an ACL.

2.Configure a classifier and configure rules in the classifier.

3.Configure the behavior and action.

4.Configure a traffic policy, and bind it to classifier and behavior.

5.Apply the traffic policy.

In V200R005 and later versions, the configuration procedure is as follows:

1.Configure an ACL.

2.Apply the ACL.

Tips

The number of steps for ACL configuration is reduced from 5 to 2. You only need two steps to complete ACL configuration, improving work efficiency.

Example

Configure ACL on GE1/0/1 to filter packets. Only the packets with source address 192.168.0.2/32 are allowed to pass.

lIn versions earlier than V200R005, the configuration procedure is as follows:

1.6 Web Management System

The Application Scenario-based Wizard Reduces the Number of Page Switching and Click Times

Tips

In V200R005 and later versions, the web management system provides application scenario-based wizard for the S2750, S5700, S7700, S9700, and S12700. For example, in the above figure, the number of page switching and click times for IP phone connection is greatly reduced.

Start the Web System with One Button

For details, see Table 1-17.

Table 1-17 Start the Web system with one button

Improvement

Involved Models

Before

Now

The Web system can be started by one button.

V200R006C10: S2720EI

V200R007C00 and later versions: S5700LI, S5700S-LI, S5710-X-LI, S5720SI, S5720S-SI, S5720HI, S5720EI, and S6720EI, except S5720-50X-EI-AC and S5720-50X-EI-46S-AC of the S5720EI series

Procedure for logging in to the Web system:

Step 1: Log in to the switch through the console port IP address.

Step 2: Assign an IP address to the PC to ensure a reachable route between the PC and switch. Enable FTP/SFTP server on the PC.

Step 3: Upload and install the web file to the switch.

Step 4: Enable HTTPS service.

Step 5: Configure an HTTP user.

Step 6: The user uses the assigned IP address to log in to the web system through HTTPS.

Step 1: Press and hold down the MODE button for 6 seconds or longer. When all indicators are steady green, the switch enters the initial configuration mode.

Step 2: Assign an IP address to the PC to ensure a reachable route between the PC and switch.

Previously, you must use the console port of these product models for the first login. Therefore, the operation terminal must have a serial port for login. In real-world applications, field engineers usually use laptops without serial ports, which cannot be used for switch maintenance.

New models available in V200R001 and later versions have a Mini USB port. You can connect a laptop to this port to log in to and manage a switch.

Tips

If you use a laptop as an operation terminal, connect it to the Mini USB port of a switch to log in to and maintain the switch.

The following figure shows the Mini USB port on a switch.

Multiple Mode Indicators Are Added to the Front Panel to Help Determine the Running State of a Switch More Conveniently

For details, see Table 1-19.

Table 1-19 Multiple mode indicators are added to the front panel to help determine the running state of a switch more conveniently

Improvement

Involved Models

Before

Now

Multiple mode indicators are added to the front panel to help determine the running state of a switch more conveniently.

On the old models, uplink and downlink ports on the front panel do not have distinctive identifiers, so it is not easy for users to identify the type and usage of the ports.

New models available in V200R001 and later versions identify uplink and downlink ports with different colors, making it easy to determine the type and usage of ports.

Tips

New models available in V200R001 and later versions identify uplink and downlink ports with different colors (for example, yellow for uplink ports) and mark the port speeds above the ports. You can easily identify uplink/downlink ports and port speeds.

No distinctive identifiers for ports on an old model:

Uplink and downlink ports identified by different colors on a new model:

If the LINK/ALM indicator of a port on an EH1D2VS08000 CSS card is steady red, the cluster cable on this port is not connected in compliance with the connection rules. Only the EH1D2VS08000 CSS card supports this function.

S9706, S9712, S12708, S12712

To check whether cluster cables are connected correctly, you need to start the switches. Once incorrect cluster cable connections are found, you need to reconnect cluster cables onsite.

You can determine whether cluster cables are connected correctly by observing LINK/ALM indicators on CSS cards, and make sure all cluster connections are correct before logging in to the switch. This improves the cluster setup efficiency.

Tips

On the new models, you can determine whether cluster cables are connected correctly by checking LINK/ALM indicators of ports on CSS cards. Only the EH1D2VS08000 CSS card supports this function. The following figure shows indicators on this card.

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